TABLE 2.

MICs and MBCs of penicillin, erythromycin, and vancomycin for sterile-site isolates

Isolate	Serotype/species	Penicillin		Erythromycin		Vancomycin
		MIC (μg/ml)	MBC (μg/ml)	MIC (μg/ml)	MBC (μg/ml)	MIC (μg/ml)	MBC (μg/ml)
1	G/group Ga	≤0.016	≤0.016	0.12	0.16	0.25	0.25
2	G/group G	≤0.016	≤0.016	0.12	8	0.25	8b
3	G/group G	≤0.016	≤0.016	0.12	0.25	0.25	8b
4	C/S. anginosus	0.06	0.06	≤0.016	2	0.5	0.5
5	C/S. anginosus	0.03	0.03	≤0.016	0.12	0.5	0.5
6	G/NAc	≤0.016	≤0.016	0.12	0.5	0.12	0.25
7	G/group G	≤0.016	≤0.016	0.12	0.5	0.12	8b
8	G/group G	≤0.016	≤0.016	>16	>16	0.25	8b
9	G/group G	≤0.016	≤0.016	0.12	0.5	0.25	8b
10	G/NA	≤0.016	≤0.016	0.12	0.25	0.25	0.25
11	G/group G	≤0.016	≤0.016	0.12	16	0.5	8
12	G/group G	≤0.016	≤0.016	0.12	0.5	0.25	8b
13	C/S. anginosus	≤0.016	0.03	≤0.016	4	0.5	0.5
14	G/group G	≤0.016	≤0.016	0.12	1	0.25	8b
15	C/S. anginosus	0.06	0.06	≤0.016	0.12	0.5	1
16	G/group G	≤0.016	0.06	0.12	0.25	0.25	16b
17	G/group G	≤0.016	≤0.016	0.12	16	0.25	4
18	G/group G	≤0.016	≤0.016	0.12	0.25	0.25	8b
19	G/group G	≤0.016	≤0.016	0.12	0.5	0.12	8b
20	G/group G	≤0.016	≤0.016	0.12	1	0.25	4
21	G/group G	≤0.016	≤0.016	0.12	1	0.12	8b
22	G/group G	≤0.016	≤0.016	0.12	8	0.25	8b
23	G/group G	≤0.016	≤0.016	0.12	4	0.12	16b
24	G/S. anginosus	0.06	0.06	0.06	0.25	0.5	16b
25	G/group G	≤0.016	≤0.016	0.12	4	0.25	2
26	G/group G	≤0.016	≤0.016	0.12	8	0.25	8b
27	G/group G	≤0.016	≤0.016	0.12	0.5	0.25	8b
28	C/group Ca	≤0.016	≤0.016	4	>16	0.25	4
29	G/group G	≤0.016	≤0.016	8	>16	0.25	4
30	G/S. anginosus	0.06	0.5	≤0.016	2	0.5	16b
31	G/S. anginosus	0.03	0.06	≤0.016	0.25	0.5	2
32	G/group G	≤0.016	≤0.016	0.12	4	0.12	8b

^aUnless otherwise specified, species listed as group G or group C belong to S. dysgalactiae subsp. equisimilis or large-colony phenotype. 

^bVancomycin-tolerant strains. 

^cNA, not available.